[jdk17u-dev] RFR: 8275874: [JVMCI] only support aligned reads in c2v_readFieldValue

[Goetz Lindenmaier]

I backport this for parity with 17.0.3-oracle.

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Commit messages:
 - Backport 2448b3f5f96ec4d9ea8fe9dae32a0aab725fb4ad

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/138/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=138&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8275874
  Stats: 52 lines in 5 files changed: 21 ins; 19 del; 12 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/138.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/138/head:pull/138

PR: https://git.openjdk.java.net/jdk17u-dev/pull/138